Many rivers()()()in our village我们村的许多河流已经被污染了

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正确的答案是
Many rivers (have) (been) (contaminated) in our village
3 个 空也可以填
have bee polluted
被污染be contaminated
bee polluted
======以下答案可供参考======
供参考答案1:
Many Rivers is already polluted in our village.
供参考答案2:
我们村的许多河流已经被污染了。
Many rivers()()()in our village.
答案：have been polluted
解析：本句的时态为现在完成时